Download the firmware pack from the ZKTeco Support Page . If it is a compressed file (e.g., .zip), extract the contents.
The ZKTeco K40 Pro connects to software like ZKTime 5.0, ZKTime 8.0, or third-party HR systems. Newer firmware versions ensure seamless communication with Windows 11/Server 2022 and modern USB drivers. zkteco k40 pro firmware download updated